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Machine Translation (MT) is undergoing a paradigm shift, with systems based on fine-tuned large language models (LLM) becoming increasingly competitive with traditional encoder-decoder models trained specifically for translation tasks.…

计算与语言 · 计算机科学 2025-01-30 Zilu Tang , Rajen Chatterjee , Sarthak Garg

Prompt-based verification is widely used to mitigate hallucinations in large vision-language models (LVLMs), yet when it helps remains poorly understood. We systematically study verification prompting across two representative LVLM…

计算与语言 · 计算机科学 2026-05-28 Yuang Huang , Yafeng Zhang , Yu Zilan

Multimodal Large Language Models (MLLMs) have achieved impressive advances, yet object hallucination remains a persistent challenge. Existing methods, based on the flawed assumption that omission and fabrication hallucinations share a…

计算机视觉与模式识别 · 计算机科学 2025-09-03 Guangzong Si , Hao Yin , Xianfei Li , Qing Ding , Wenlong Liao , Tao He , Pai Peng

The Large Visual Language Models (LVLMs) enhances user interaction and enriches user experience by integrating visual modality on the basis of the Large Language Models (LLMs). It has demonstrated their powerful information processing and…

人工智能 · 计算机科学 2024-10-22 Wei Lan , Wenyi Chen , Qingfeng Chen , Shirui Pan , Huiyu Zhou , Yi Pan

Recent advancements in massively multilingual machine translation systems have significantly enhanced translation accuracy; however, even the best performing systems still generate hallucinations, severely impacting user trust. Detecting…

Large Language Models (LLMs) have succeeded in a variety of natural language processing tasks [Zha+25]. However, they have notable limitations. LLMs tend to generate hallucinations, a seemingly plausible yet factually unsupported output…

计算与语言 · 计算机科学 2025-09-19 Martin Preiß

Large Vision-Language Models (LVLMs) have demonstrated remarkable capabilities in visual understanding and multimodal reasoning. However, LVLMs frequently exhibit hallucination phenomena, manifesting as the generated textual responses that…

计算机视觉与模式识别 · 计算机科学 2025-07-31 Ziyun Dai , Xiaoqiang Li , Shaohua Zhang , Yuanchen Wu , Jide Li

Spatial relation hallucinations pose a persistent challenge in large vision-language models (LVLMs), leading to generate incorrect predictions about object positions and spatial configurations within an image. To address this issue, we…

计算与语言 · 计算机科学 2025-03-24 Jiarui Wu , Zhuo Liu , Hangfeng He

Vision-language models (VLMs) have demonstrated remarkable capabilities in bridging visual perception and natural language understanding, enabling a wide range of multimodal reasoning tasks. However, they often produce object…

计算机视觉与模式识别 · 计算机科学 2026-05-14 Jiaxin Liu , Ding Zhong , Yue Wang , Zhidong Yang , Zhaolu Kang , Guangyuan Dong , Qishi Zhan , Pengcheng Fang , Aofan Liu

Weakly-supervised vision-language (V-L) pre-training (W-VLP) aims at learning cross-modal alignment with little or no paired data, such as aligned images and captions. Recent W-VLP methods, which pair visual features with object tags, help…

计算机视觉与模式识别 · 计算机科学 2022-10-28 Tzu-Jui Julius Wang , Jorma Laaksonen , Tomas Langer , Heikki Arponen , Tom E. Bishop

Although Multimodal Large Language Models (MLLMs) have advanced substantially, they remain vulnerable to object hallucination caused by language priors and visual information loss. To address this, we propose SAVE (Sparse Autoencoder-Driven…

计算机视觉与模式识别 · 计算机科学 2025-12-12 Sangha Park , Seungryong Yoo , Jisoo Mok , Sungroh Yoon

Despite the great success of Large Vision-Language Models (LVLMs), they inevitably suffer from hallucination. As we know, both the visual encoder and the Large Language Model (LLM) decoder in LVLMs are Transformer-based, allowing the model…

计算与语言 · 计算机科学 2025-11-07 Xuan Gong , Tianshi Ming , Xinpeng Wang , Zhihua Wei

Multimodal Large Language Models (MLLMs) frequently exhibit hallucination phenomena, but the underlying reasons remain poorly understood. In this paper, we present an empirical analysis and find that, although MLLMs incorrectly generate the…

计算与语言 · 计算机科学 2025-02-25 Chenxi Wang , Xiang Chen , Ningyu Zhang , Bozhong Tian , Haoming Xu , Shumin Deng , Huajun Chen

Large Vision-Language Models (LVLMs) have shown strong performance across multimodal tasks. However, they often produce hallucinations -- text that is inconsistent with visual input, due to the limited ability to verify information in…

计算机视觉与模式识别 · 计算机科学 2025-10-14 Haonan Ge , Yiwei Wang , Ming-Hsuan Yang , Yujun Cai

Automated radiology report generation using vision-language models (VLMs) is limited by the risk of prior-comparison hallucination, where the model generates historical findings unsupported by the current study. We address this challenge…

计算机视觉与模式识别 · 计算机科学 2026-03-02 Ao Li , Rui Liu , Mingjie Li , Sheng Liu , Lei Wang , Xiaodan Liang , Lina Yao , Xiaojun Chang , Lei Xing

Although Large Vision-Language Models (LVLMs) have made substantial progress, hallucination, where generated text is not grounded in the visual input, remains a challenge. As LVLMs become stronger, previously reported hallucination…

计算机视觉与模式识别 · 计算机科学 2026-03-03 April Fu

Vision language models (VLM) demonstrate sophisticated multimodal reasoning yet are prone to hallucination when confronted with knowledge conflicts, impeding their deployment in information-sensitive contexts. While existing research…

计算机视觉与模式识别 · 计算机科学 2025-07-18 Peter Carragher , Nikitha Rao , Abhinand Jha , R Raghav , Kathleen M. Carley

Large Vision-Language Models (LVLMs) have achieved impressive performance, yet research has pointed out a serious issue with object hallucinations within these models. However, there is no clear conclusion as to which part of the model…

计算机视觉与模式识别 · 计算机科学 2024-10-07 Yufang Liu , Tao Ji , Changzhi Sun , Yuanbin Wu , Aimin Zhou

Despite their impressive capabilities, multimodal large language models (MLLMs) are prone to hallucinations, i.e., the generated content that is nonsensical or unfaithful to input sources. Unlike in LLMs, hallucinations in MLLMs often stem…

计算机视觉与模式识别 · 计算机科学 2025-05-09 Xin Zou , Yizhou Wang , Yibo Yan , Yuanhuiyi Lyu , Kening Zheng , Sirui Huang , Junkai Chen , Peijie Jiang , Jia Liu , Chang Tang , Xuming Hu

Large vision-language models show tremendous potential in understanding visual information through human languages. However, they are prone to suffer from object hallucination, i.e., the generated image descriptions contain objects that do…

计算与语言 · 计算机科学 2025-03-03 Jiaqi Bai , Hongcheng Guo , Zhongyuan Peng , Jian Yang , Zhoujun Li , Mohan Li , Zhihong Tian